Ballotpedia has identified this as a key Republican primary to watch. It identified 15 U.S. Senate primaries, 38 U.S. House primaries, and 9 primaries for state executive offices. See the full story here.

Ballotpedia has ALSO identified this race as a key Democratic primary to watch. They named 3 senate primaries, 34 house primaries, and 11 state executive primaries. See the full story here.